Калькулятор IP подсетей

149.28.135.0-149.28.159.255

149.28.135.0-149.28.135.255
149.28.135.0/24

149.28.136.0-149.28.143.255
149.28.136.0/21

149.28.144.0-149.28.159.255
149.28.144.0/20